Regularization of dielectric tensor tomography

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Dielectric tensor tomography reconstructs the three-dimensional dielectric tensors of microscopic objects and provides information about the crystalline structure orientations and principal refractive indices. Because dielectric tensor tomography is based on transmission measurement, it suffers from the missing cone problem, which causes poor axial resolution, underestimation of the refractive index, and halo artifacts. In this study, we study the application of total variation and positive semi-definiteness regularization to three-dimensional tensor distributions. In particular, we demonstrate the reduction of artifacts when applied to dielectric tensor tomography.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Publisher
Optica Publishing Group
Issue Date
2023-01
Language
English
Article Type
Article
Citation

OPTICS EXPRESS, v.31, no.3, pp.3774 - 3783

ISSN
1094-4087
DOI
10.1364/OE.478260
URI
http://hdl.handle.net/10203/305690
Appears in Collection
PH-Journal Papers(저널논문)
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